//
//  YJDIP.m
//  sigleAPP
//
//  Created by SKL on 2017/11/13.
//  Copyright © 2017年 SKL. All rights reserved.
//

#import "YJDIP.h"
#import <sys/socket.h>
#import <sys/sockio.h>
#import <sys/ioctl.h>
#import <net/if.h>
#import <arpa/inet.h>
#import <ifaddrs.h>

#define IOS_CELLULAR    @"pdp_ip0"
#define IOS_WIFI        @"en0"
#define IOS_VPN         @"utun0"
#define IP_ADDR_IPv4    @"ipv4"
#define IP_ADDR_IPv6    @"ipv6"
@implementation YJDIP

/**
 *@ pragma 获取Wi-Fi条件下的本地IP
 */
+ (NSString *)yjd_getLocalWIFIIP
{
    NSString *address = @"error";
    struct ifaddrs *interfaces = NULL;
    struct ifaddrs *temp_addr = NULL;
    int success = 0;
    // retrieve the current interfaces - returns 0 on success
    success = getifaddrs(&interfaces);
    if (success == 0)
    {
        
        // Loop through linked list of interfaces
        temp_addr = interfaces;
        while(temp_addr != NULL)
        {
            if(temp_addr->ifa_addr->sa_family == AF_INET)
            {
                // Check if interface is en0 which is the wifi connection on the iPhone
                if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"])
                {
                    // Get NSString from C String
                    address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
                }
            }
            temp_addr = temp_addr->ifa_next;
        }
    }
    // Free memory
    freeifaddrs(interfaces);
    
    return address;
}
/**
 *@ pragma 获取本地IP
 */
+ (id)yjd_getLocalIP
{
    NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];
    
    // retrieve the current interfaces - returns 0 on success
    struct ifaddrs *interfaces;
    if(!getifaddrs(&interfaces)) {
        // Loop through linked list of interfaces
        struct ifaddrs *interface;
        for(interface=interfaces; interface; interface=interface->ifa_next) {
            if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) {
                continue; // deeply nested code harder to read
            }
            const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr;
            char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ];
            if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) {
                NSString *name = [NSString stringWithUTF8String:interface->ifa_name];
                NSString *type;
                if(addr->sin_family == AF_INET) {
                    if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv4;
                    }
                } else {
                    const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr;
                    if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv6;
                    }
                }
                if(type) {
                    NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];
                    addresses[key] = [NSString stringWithUTF8String:addrBuf];
                }
            }
        }
        // Free memory
        freeifaddrs(interfaces);
    }
    return [addresses count] ? addresses : nil;
}
/**
 *@ pragma 获取公网IP
 */
+ (NSString *)yjd_getNetIP
{
    __block NSString *ip = @"";
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        NSURL *ipURL = [NSURL URLWithString:@"http://ip.taobao.com/service/getIpInfo.php?ip=myip"];
        NSData *data = [NSData dataWithContentsOfURL:ipURL];
        
        NSURL *ipURL2 = [NSURL URLWithString:@"http://pv.sohu.com/cityjson?ie=utf-8"];
        NSData *data2 = [NSData dataWithContentsOfURL:ipURL2];
        
        if (data)
        {
            NSDictionary *ipDic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
            if (ipDic && [ipDic[@"code"] integerValue] == 0)
            { //获取成功
                NSString *city = [[ipDic valueForKey:@"data"] valueForKey:@"city"];
                NSString *region = [[ipDic valueForKey:@"data"] valueForKey:@"region"];
                NSString *country = [[ipDic valueForKey:@"data"] valueForKey:@"country"];
                [[YJDHelper shareHelp] setValue:city forKey:@"city"];
                [[YJDHelper shareHelp] setValue:region forKey:@"area"];
                [[YJDHelper shareHelp] setValue:country forKey:@"country"];
                ip = ipDic[@"data"][@"ip"];
            }
        }
        else if (data2)
        {
            NSString *string = [[NSString alloc] initWithData:data2 encoding:NSUTF8StringEncoding];
            NSArray *array = [string componentsSeparatedByString:@"= "];
            NSString *comment = array[1];
            NSString *comment2 = [comment substringToIndex:[comment length] - 1];
            NSDictionary *dict = [comment2 yjd_dict];
            NSString *city = [dict valueForKey:@"cname"];
            NSString *region = [dict valueForKey:@"cname"];
            [[YJDHelper shareHelp] setValue:city forKey:@"city"];
            [[YJDHelper shareHelp] setValue:region forKey:@"area"];
            ip = [dict valueForKey:@"cip"];
        }
        
    });
    [NSThread sleepForTimeInterval:2.0];//睡眠2秒，超过2秒IP返回空字符
    return ip;
}
@end
